How to Get Separate Turn Signals and Brake Lights to Work on a Trailer
Question:
hi i have 2004 ford 350 diesel 6.0 with a 7 pole outlet i build a trailer and i put red for stop amber for turn white for reverse wen i put turn signal red and amber turn on wen i push stop pedal also red and amber turn on and i notice that in the 7 pole wiring diagram stop and turn are the same wire what part do i need to separate the wires in the trailer
asked by: Jorge F
Expert Reply:
If your trailer has separate turn signals from the brake lights and you want them to remain that way, you will need to use a special converter. On the trailer side, behind the 7-Way, you will attach the Vehicle to Vehicle Taillight Converter, # 118158. On the 7-Way wiring, locate the wire for the left turn and brake and attach it to the yellow wire on the converter input side. Connect the wire from right turn and stop to the green wire input side. Ground the white wire to the trailer frame.
On the output side that will go to the trailer lights, you will have the yellow wire, which will now be left turn only, the green wire for right turn only, and a red wire for brake lights only. Note that the running light wire is not involved at all.
Product Page this Question was Asked From
Vehicle to Vehicle Tail Light Converter
- Accessories and Parts
- Trailer Wiring
- Mounting Hardware
- Brackets
- 7 Round
- 7 Round
- Tow Ready
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Vehicle to Vehicle Tail Light Converter
- Shop: Vehicle Tow Bar Wiring
- Shop: Trailer Wiring
- Shop: Curt 2 to 3 Wire Tail Light Converter
- Shop: Base Plate for Tow Bar
- Article: Trailer Wiring Diagrams
- Q&A: Separating Trailer Turn Signals and Brake Lights
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Shop: Roadmaster Brite-Lite Wiring Converter
- Shop: Brake Controller
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Shop: Vehicle Tow Bar Brake System
- Shop: Curt 4-Way Flat Trailer Connector with Circuit Protected Powered Tail Light Converter
- Shop: Trailer Hitch
- Shop: Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit
- Shop: Kuat Pivot 2 Swing Away Hitch Extender for Bike Racks - 2" Hitches - Driver's Side
- Shop: Hopkins Tail Light Converter with 4-Way Flat Trailer Connector
- Q&A: How Does Brake Controller Install on Freightliner S2RV Chassis
- Search Results: 2 wire to 3 wire tail light converter
- Video: Curt Tow Bar Wiring C56196 Review
- Q&A: Solution for Installing Trailer Wiring on a Vehicle with Separate Turn Signals from Brake Lights
- Shop: Roof Rack
- Q&A: How to Wire a Towed Vehicle With Seperate Turn and Brake Cicuits on Towing Vehicle
- Search Results: wiring kit
- Video: Optronics Trailer Lights - Tail Lights - TLL16RK Review
- Search Results: 4 pin wiring harness
- Search Results: trailer light converter
- Search Results: 4 pin extension
- Search Results: trailer rear lights
- Q&A: Difference Between an Idler Hub and a Hub/Drum
on Accessories and Parts
John
3/18/2020
I have a seven way Hopkins blade plug that I attached to my car. everything is working properly when I do a voltage test of each individual blade to the ground blade. The vehicle has a separate turn signal indicator. It looks like the running lights and the brake lights use the same bulb. I did not connect the brake light cable. Because I couldn’t figure out which blade it would connect to on the seven way blade.